The logical picture of the facts is the thought.
3.01 The totality of true thoughts is a picture of the world.
3.02 The though contains the possibility of the state of affairs which it thinks.
What is thinkable is also possible.
3.03 (2) We cannot think anything unlogical, for otherwise we should have to think unlogically.
3.04 An a priori true thought would be one whose possibility guaranteed its truth.
3.05 Only if we could know a priori that a thought is true if its truth was to be recognized from the thought itself (without an object of comparison).